[INFO] fetching crate daab 0.4.0...
[INFO] checking daab-0.4.0 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate daab 0.4.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate daab 0.4.0 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate daab 0.4.0
[INFO] finished tweaking crates.io crate daab 0.4.0
[INFO] tweaked toml for crates.io crate daab 0.4.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate daab 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c304a206e7896a8b5eb471c608280e607bfa16bbfb40b33a423c6dd4f8e65ea8
[INFO] running `Command { std: "docker" "start" "-a" "c304a206e7896a8b5eb471c608280e607bfa16bbfb40b33a423c6dd4f8e65ea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c304a206e7896a8b5eb471c608280e607bfa16bbfb40b33a423c6dd4f8e65ea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c304a206e7896a8b5eb471c608280e607bfa16bbfb40b33a423c6dd4f8e65ea8", kill_on_drop: false }`
[INFO] [stdout] c304a206e7896a8b5eb471c608280e607bfa16bbfb40b33a423c6dd4f8e65ea8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f5f6cd510af33f509d87aaaa1a6d328071dd5c954888afc3527cf07263eeb23
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4f5f6cd510af33f509d87aaaa1a6d328071dd5c954888afc3527cf07263eeb23", kill_on_drop: false }`
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking never v0.1.0
[INFO] [stderr]     Checking memchr v2.3.3
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking daab v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stdout] warning: associated function is never used: `builder_ptr`
[INFO] [stdout]    --> src/blueprint.rs:167:16
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub(crate) fn builder_ptr(&self) -> *const () {
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `BuilderDyn`
[INFO] [stdout]    --> src/blueprint.rs:562:1
[INFO] [stdout]     |
[INFO] [stdout] 562 | type BuilderDyn<ArtCan, BCan, Artifact, Err, DynState> = dyn Builder<ArtCan, BCan, Artifact=Artifact, Err=Err, DynState=DynState>;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `builder_ptr`
[INFO] [stdout]    --> src/blueprint.rs:674:16
[INFO] [stdout]     |
[INFO] [stdout] 674 |     pub(crate) fn builder_ptr(&self) -> *const () {
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `lookup_mut`
[INFO] [stdout]    --> src/cache/internal.rs:367:16
[INFO] [stdout]     |
[INFO] [stdout] 367 |     pub(crate) fn lookup_mut<AP, B: ?Sized>(
[INFO] [stdout]     |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_mut`
[INFO] [stdout]    --> src/cache/internal.rs:555:16
[INFO] [stdout]     |
[INFO] [stdout] 555 |     pub(crate) fn get_mut<AP, B: ?Sized>(
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `invalidate_dependents`
[INFO] [stdout]    --> src/cache/internal.rs:850:5
[INFO] [stdout]     |
[INFO] [stdout] 850 |     fn invalidate_dependents(&mut self, builder: &BuilderId) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a type alias
[INFO] [stdout]   --> src/rc.rs:57:1
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub type ConstBuilder<T> = crate::utils::ConstBuilder<CanType, BuilderCan, BinType<T>, T>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | #![warn(missing_docs)]
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a type alias
[INFO] [stdout]   --> src/rc.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub type ConfigurableBuilder<T> = crate::utils::ConfigurableBuilder<CanType, BuilderCan, T>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a type alias
[INFO] [stdout]   --> src/arc.rs:57:1
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub type ConstBuilder<T> = crate::utils::ConstBuilder<CanType, BuilderCan, BinType<T>, T>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a type alias
[INFO] [stdout]   --> src/arc.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub type ConfigurableBuilder<T> = crate::utils::ConfigurableBuilder<CanType, BuilderCan, T>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a type alias
[INFO] [stdout]   --> src/boxed.rs:59:1
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub type ConstBuilder<T> = crate::utils::ConstBuilder<CanType, BuilderCan, BinType<T>, T>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a type alias
[INFO] [stdout]   --> src/boxed.rs:60:1
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub type ConfigurableBuilder<T> = crate::utils::ConfigurableBuilder<CanType, BuilderCan, T>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated type
[INFO] [stdout]   --> src/blueprint.rs:80:2
[INFO] [stdout]    |
[INFO] [stdout] 80 |     type Builder: ?Sized + 'static + Debug;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated type
[INFO] [stdout]   --> src/blueprint.rs:81:2
[INFO] [stdout]    |
[INFO] [stdout] 81 |     type BCan: Can<Self::Builder>;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stdout] warning: unused variable: `artifact_node`
[INFO] [stdout]    --> src/test_impl_dyn.rs:240:6
[INFO] [stdout]     |
[INFO] [stdout] 240 |     let artifact_node = cache.get(&noden1);
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_artifact_node`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `artifact_root`
[INFO] [stdout]    --> src/test_impl_dyn.rs:241:6
[INFO] [stdout]     |
[INFO] [stdout] 241 |     let artifact_root = cache.get(&noden3);
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_artifact_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/test_impl_dyn.rs:60:16
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub(crate) fn new(leaf: Blueprint<BuilderLeaf>) -> Self {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `leaf`
[INFO] [stdout]    --> src/test_impl_dyn.rs:129:16
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub(crate) fn leaf(&self) -> Option<&BinType<Leaf>> {
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `left`
[INFO] [stdout]    --> src/test_impl_dyn.rs:137:16
[INFO] [stdout]     |
[INFO] [stdout] 137 |     pub(crate) fn left(&self) -> Option<&BinType<ComplexNode>> {
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `right`
[INFO] [stdout]    --> src/test_impl_dyn.rs:145:16
[INFO] [stdout]     |
[INFO] [stdout] 145 |     pub(crate) fn right(&self) -> Option<&BinType<ComplexNode>> {
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `builder_ptr`
[INFO] [stdout]    --> src/blueprint.rs:167:16
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub(crate) fn builder_ptr(&self) -> *const () {
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `BuilderDyn`
[INFO] [stdout]    --> src/blueprint.rs:562:1
[INFO] [stdout]     |
[INFO] [stdout] 562 | type BuilderDyn<ArtCan, BCan, Artifact, Err, DynState> = dyn Builder<ArtCan, BCan, Artifact=Artifact, Err=Err, DynState=DynState>;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `builder_ptr`
[INFO] [stdout]    --> src/blueprint.rs:674:16
[INFO] [stdout]     |
[INFO] [stdout] 674 |     pub(crate) fn builder_ptr(&self) -> *const () {
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `as_ptr_mut`
[INFO] [stdout]    --> src/test.rs:359:4
[INFO] [stdout]     |
[INFO] [stdout] 359 | fn as_ptr_mut<T,E>(res: Result<&mut T,E>) -> Result<*mut T,E> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.49s
[INFO] running `Command { std: "docker" "inspect" "4f5f6cd510af33f509d87aaaa1a6d328071dd5c954888afc3527cf07263eeb23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f5f6cd510af33f509d87aaaa1a6d328071dd5c954888afc3527cf07263eeb23", kill_on_drop: false }`
[INFO] [stdout] 4f5f6cd510af33f509d87aaaa1a6d328071dd5c954888afc3527cf07263eeb23